Alonzo lambeet



( No Model.)

. A. LAMBERT.

MODE OF MANUFACTURING BRAGEIIETS. v

ATTORNEYS. V

To all whom Hmong concern:

UNITED; STATEd PATENT- OFricE.

ALONZO LAMBERT, 0F CORONA, ASSIGNOR TO S. W. HALE & (30., OF

; NEW YORK, NrY."

MODE oFMANuFAcTUa No BRACELETS.

SPECIFICATION forming part of Letters Patent No. 264,541, datedSeptember 19, 1882.

' Application filed March 23,1882. (No model.)

Be it known that I, ALONZO LAMBERT, of Corona, in the county of QueensandState of New York,have invented certain new and useful Improvementsin the Mode of Manufacturing Bracelets, of which the following is afull, clear, and exact description.

lteference'is to be had to the accompanying drawings, forming part ofthis specification, in which similar letters of reference indicatecorresponding parts in all the figures.

Figure -l is a section of the stock for a bracelet before being operatedupon. Fig. 2 is a section of the same after the first operation. Fig. 3is a section of the same alter the second operation. Fig. 4 is a sectionof the same after the third operation. Fig. 5 is an end elevation,partly in section, of the dies for performing the first operation. Fig.(iis an end elevation, partly in section, of the die a ntl tool forperforming the second operation. Fig. 7 is an end elevation, partly insection, of the dies for performing the third operation. Fig.

. 8. is a side elevation, partly in section, of the dies for givingshape to half-bracelets. Fig.

9is a sectional end elevation of the same, taken through the line so m,Fig. 8. Fig. 10 is a sectional end elevation of the mandrel for givingshape to the bracelet when made in one piece,

the bending-tool being shown in side elevation. Fig. 11 is a plan viewof the same. Fig. 12 is a perspective view of a halt-bracelet. Fig. 13is a perspective view'of a bracelet madein one piece. v

The object of this invention ist o facilitate and chea pen themanufacture of bracelets made with raised rims. V

The invention consists in the mode of manufacturing bracelets havingraised rims by bending the edges of the stock upward at right angles bypressing the-stock into a grooved die, then bending the turned-up edgesinward at rightangles over rectangular wires placed in the angles of thestock while still in the die, then bending the inwardly-projecting edgesdownward at right angles along the inner sides of, the wires, and thenbringing the bracelet into shape upon an .oval mandrel with abending-tool also, in the combination, with alathe, of a graduatedmandrel, a bending-tool, and

, the bracelet.

its fulcrum-rod,,whereby a bracelet can be readily brought into therequired shape; and, also,ain a bending-roller having rabbets at itsends, in combination with an oval annular grooved mandrel, and ashiftable hand-lever, whereby a bracelet made with projecting rims canbe readily brought into shape, as will be hereinafter fully described.

A represents a plate of gold or other metal ofsuitable length, width,and thickness to form a bracelet. The stock A is laid upon a female diehaving a rectangular channel formed in its face of a width equal to thedesired width of The stock A is forced into the die B by a male die, 0,bending its edges upward at right angles, and bringing it to the formshown in Fig. 2. Rectangular wires 1), of suitable size, are then placedin the angles ofthe stock A, and the edges of the said stock are thenhammered or burnished down upon the said wires with a suitable tool,.E,bringing the stock A to the form shown in Fig. 3, each edge being benttwice atright angles, the said wires being held in place by hooks F,asshown in Fig. 6. The inwardly-projecting edges of the stock A are thenbent downward at right angles along the inner sides ofthe wires D by adie, G, of suitable size, as indicated in Fig. 7, each edge of the stockbeing thus bent three times at right angles, as shown inFig.4. The stockA is then removed from the die B, and one of its ends isinsertedin agroove or slot, H, in the bottom of an annular groove in an ovalmandrel, I, and the stock is worked down into the said groove by abendingroller or tool, J, bringing the stock to the oval form requiredin a bracelet. The mandrel I is placed in and revolved by an ordinarylathe. The bendingeroller J is pivoted to the forked end of alever-handle, K, which has an eye formed in it to receive and slide upona rod, L, connectedwith and supported by thelathe-heads, and whichserves as a slide and fulcrum for the bending-tool. For convenience inmaking bracelets of different sizes, the mandrel I is g its ends, soasto operateupon the body of the stock and upon its rims. When the stockhas been brought to the desired shape it is removed from the mandrel I,its elasticity being sufficient to allow it to be sprung from the saidmandrel without having its shape changed. The wiresD are then withdrawnfrom the stock A, and the said stock is provided with a hinge and catch,and is ornamented and finished in the ordinary manner.

When thebracelet is to be madein two parts or halves the stock is placedin a female die, M, having a half-oval face, and having grooves alongthe sides of its face to receive the rims of thesaid stock, and thestock is brought into a halfioval shape by a male die, N, having acorresponding half-oval face, as shown in Figs. 8 and 9. The two partsof the bracelet are then provided with a hinge and a catch, and areornamented in the ordinar manner.

Having thus fully described my invention, I claim as new and desire tosecure by Letters Patent- 1. The mode of manufacturing bracelets havingraised rims, substantially as herein shown and described, which consistsin bending the edges of the stock upward at right angles by pressing thestock into a grooved die, then bending the turned-up edges inward atright angles over rectangular wires placed in the angles of the stockwhile still in the die, then 0 whereby the bracelet can be readilybrought into the required shape, as set forth.

3. The combination, with the oval mandrel Lhaving annular grooves, ofthe pivoted shiftable hand-lever K and the rabbeted roller J, as shownand described.

ALONZO LAMBERT.

Witnesses:

WILLIs H. HAWES, CHAS. H. BALDWIN.

